Vertiv PS1500RT3-120XR, Line-Interactive, 1.5 kVA, 1350 W, Sine, 83 V, 159 V Vertiv PS1500RT3-120XR. UPS topology: Line-Interactive, Output power capacity: 1.5 kVA, Output power: 1350 W. Serial interface type: RS-232. Typical backup time at full load: 5 min, Typical backup time at half load: 14 min, Battery recharge time: 5 h. Form factor: Rackmount/Tower, Product color: Black, Rack capacity: 2U. Certification: FCC Part 15, Class A, UL 497 B, ISTA Procedure 1A